Solution-identifying means for medicinal preparations



M. F. THOMPSON.

SOLUTION IDENTIFYING MEANS FOR MEDICINAL PREPARATIONS.

' APPLICATION FILED APR. 23, I915.

L3Q3 Q53I Patented. Oct. H, 1921.

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MILJLARD r. .rnoiurson, or wasmneron, nisra oa: or comm rem, assrenoa orone HALF 'ro HELGE o. n. MURRAY, or wasnrnerolv, :oisrnicr or coLUMBIa.

sonurion-innnrrrrine Means son memories; rnsranarions.

T 0 all wkom'z't may concern.

Be it known that I, MILLARD F. THOMPSON, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Solutionldentifying Means forMedicinal Preparations, of which the following is a specification.

My invention relates to improvements in,

identifying means for use in solutionsof resultant natures such as thosederived from freely soluble tablets and the like.

In the use of prepared tablets which when dissolved make no visiblechange in the resultant solution, it frequently happens that disastrousresults accompany the use thereof. This isdue to the fact that the resultant solution so closely resembles another liquid, which may be, forexample, water, that to the skilled as well as the ordinary eye noperceptible difference can be seen. It is the object of my presentinventlon to produce a marking. or identifying means which by reason ofits being formed with the freely soluble tablets or other similarpreparations, the resultant solutions derived therefrom cannot beobtained without being properly labeled and identified.

Another object of my invention is toproduce an identifying means whichcan be readily formed in a freely soluble tablet at a minimum cost andwith no appreciable diminution of the terial used. I

In the. drawings which by way of illustration show one embodiment of myinven' tion:

Figure 1 is a perspective view of a freely soluble tablet havingembedded therein a marking element.

F 1g. 2 1s a sectional view through the i said tablet and markingelement.

Fig. 3 is a view in perspective of a bowl of the resultant solutionshowing the insoluble marking means therein, and

Fig. 4 is a view of a different form of labeling means shown embedded ina tablet.

Referring to the drawings, the tablet comprises the usual body portion 1formed of freely soluble material, and an indicating marking device ortag 2 of an insoluble material, such as glass, china, porcelain and thelike. As shown, the marking means consists of a disk '2 embedded withinthe 1 tablet so that the outer face thereof is sub Specification ofLetters Patent.

quantity of prepared ma stantially flush with the surfaceof the tablet.While this is a convenient manner in which to insert the markers in thetablets.

the exact location thereof is not limitedto that herein shown. Likewisethe shape, contour or form of the marking device is not limited to thatshown in Fig. 1, for it may consist of a bar 2 as shown in some othermodified or peculiar design capable of performing the same purpose.

Suitable legends or characters 3 are pref erably provided on the tag ormarker where- .rials have been formed in soap cakes, which, when thesoap is completely exhausted after repeated usage, become redeemable,for other cakes and the like.

Likewise I am aware of certain advertising materials molded withincertain other materials such as soap cakes, and the like; but I am notaware of the herein described marking device designed to remain withinthe resultant solution as an identifying means after the dissolving ofthe freely soluble material.

My invention is especially useful in'the professional and generalhandling of bichlorid of mercury tablets, for as used at present theresultant solution derived from said tablets cannot be distinguishedfrom water.

I am aware however, that certain blue tablets are in use, but as thesehave a limited use as well as a necessarily limited chemical anddisinfecting effect, the white tablets are by far the most efiective andmore extensivelyu'sed in the medical profession.

From the foregoing, it will be obvious that a safe and commerciallysuccessful marking and identifying device has been produced for use infreely soluble preparations where the resultant solutions can be easilyconfused with other liquids.

What I claim and desire to secure by Letters Patent is Patented oer. if,I921. Application flied April 23, 1915; Serial No. 23,471.

Fig. 4 or a tag embedded in the tablet of a material insoluble in thesolution and unaffected by the ingredients of the tablet, said tag beingadapted to remain in the solution, and bearing a legend which serves toidentify the solution, and also to Warn against accidental ingestion ofthe tablet.

2. Atablet of soluble material for use in forming antiseptic solutions01' washes and 10 a tag of insoluble material embedded in the tablet,said tag being unaffected by the ingredients of the tablets and adaptedto re main in the solution for identifying the latter.

In testimony whereof I afiix my signature in presence of two witnesses.

MILLARD F. THOMPSON. n/ itnesses JAMES F. FITZ GIBBoN, NATHAN ABRAMsoN.

